Pixel structure, display panel and driving method of pixel structure

ABSTRACT

A pixel structure is disclosed. The pixel structure includes a plurality of sub-pixel groups arranged in an array, wherein each sub-pixel group is constituted by 6 sub-pixels of different colors arranged in two rows and three columns respectively. In each row of the sub-pixels, a square pixel unit is constituted by at most two adjacent sub-pixels. The present application further discloses a display panel and a driving method of said pixel structure.

RELATED APPLICATION

This application is a continuation of U.S. patent application Ser. No.15/560,572, filed on Sep. 22, 2017, which is the U.S. national phaseentry of PCT/CN2017/073562 with an international filing date of Feb. 15,2017, which claims priority to Chinese Application No. 201610330686.X,filed on May 18, 2016, the entire disclosures of which are herebyincorporated be reference.

TECHNICAL FIELD

The present application relates to the field of computer technology,particularly to a pixel structure, a display panel and a driving methodof the pixel structure.

BACKGROUND

In the related technology, the sub-pixels of a display screen are mainlyarranged in two ways, i.e., normal sub-pixel arrangement and delta pixelarrangement.

The normal sub-pixel arrangement is a typical RGB stripe arrangement, asshown in FIG. 1. Such an arrangement controls the brightness and thechroma displayed by the pixel by controlling the corresponding colorcomponents of red (R), green (G) and blue (B) of each sub-pixel. Hence,the brightness of the pixel is generally determined by an average valueof the brightness of each sub-pixel. However, the brightness of thepixel is generally not high, and such a stripe arrangement has a largepower consumption and a low color gamut, which does not conform to therequirement of high color gamut, low power consumption and low cost.FIG. 2 is a schematic view of the delta pixel arrangement. The sub-pixelin the delta pixel arrangement includes three colors of RGB, and the oddrows and the even rows are staggered so as to form a “

” shaped arrangement. However, such an arrangement has a low colorgamut.

SUMMARY

The present application provides a pixel structure, a display panel anda driving method of the pixel structure, for solving the problem of lowcolor gamut in the prior art.

According to an aspect of the present application, a pixel structure isprovided, comprising: a plurality of sub-pixel groups arranged in anarray. Each of the sub-pixel groups is constituted by 6 sub-pixels ofdifferent colors arranged in two rows and three columns respectively. Ineach row of the sub-pixels, a square pixel unit is constituted by atmost two adjacent sub-pixels, such that each square pixel unit onlyrequires two data transmission lines.

In a possible implementation, in the above pixel structure, colorarrangement orders of sub-pixels in two adjacent sub-pixel groups in acolumn direction are the same. Color arrangement orders of sub-pixels intwo adjacent sub-pixel groups in a row direction are the same.

In a possible implementation, in the above pixel structure, colorarrangement orders of sub-pixels in two adjacent sub-pixel groups in acolumn direction are the same. A color arrangement order of an odd rowof sub-pixels in a sub-pixel group in the row direction is the same as acolor arrangement order of an even row of sub-pixels in an adjacentsub-pixel group.

In a possible implementation, in the above pixel structure, two adjacentrows of sub-pixels are staggered in a column direction.

In a possible implementation, in the above pixel structure, in each rowof sub-pixels, a square pixel unit is constituted by every 2 sub-pixels,a ratio of a length of the sub-pixel along the row direction and alength of the sub-pixel along the column direction is 1:2.

In a possible implementation, in the above pixel structure, a squarepixel unit is constituted by every 1.5 sub-pixels, a ratio of a lengthof the sub-pixel along the row direction and a length of the sub-pixelalong the column direction is 1:1.5.

In a possible implementation, in the above pixel structure, a squarepixel unit is constituted by every 1 sub-pixel, a ratio of a length ofthe sub-pixel along the row direction and a length of the sub-pixelalong the column direction is 1:1.

In a possible implementation, in the above pixel structure, the pixelstructure comprises sub-pixels of red, blue, green, cyan, magenta andyellow.

According to another aspect of the present application, a display panelis further provided, comprising the above pixel structure.

According to another aspect of the present application, a method ofdriving the above pixel structure is provided, comprising:

receiving original image information of a frame to be displayed;

determining a corresponding sampling area of each sub-pixel in the pixelstructure based on the color arrangement order of the sub-pixels in eachsub-pixel group in the pixel structure; the corresponding sampling areaof each sub-pixel comprising a square pixel unit constituted by thesub-pixel and at least partial adjacent square pixel unit;

determining a weight of each square pixel unit comprised in the samplingarea in the corresponding sampling area of each sub-pixel based on aproportion of area occupied by the square pixel unit comprised in thedetermined corresponding sampling area of each sub-pixel in the samplingarea;

determining a gray scale value that needs to be displayed by eachsub-pixel based on the weight of each square pixel unit comprised in thesampling area in the corresponding sampling area of each sub-pixel and acorresponding gray scale value of each square pixel unit with a samecolor as the sub-pixel in the original image information of the frame tobe displayed;

performing display based on the determined gray scale value that needsto be displayed by each sub-pixel.

In a possible implementation, in the above method, the step ofdetermining a corresponding sampling area of each sub-pixel in the pixelstructure based on the color arrangement order of the sub-pixels in eachsub-pixel group in the pixel structure specifically comprises:

when the color arrangement orders of sub-pixels in two adjacentsub-pixel groups in the row direction are the same, the correspondingsampling area of each sub-pixel in the pixel structure being: arectangular sampling area that takes the sub-pixel as the center andoverlaps with 9 square pixel units arranged in three rows and threecolumns respectively; and corresponding sampling areas of sub-pixels ofthe same color being in continuous distribution.

In a possible implementation, in the above method, the step ofdetermining a corresponding sampling area of each sub-pixel in the pixelstructure based on the color arrangement order of the sub-pixels in eachsub-pixel group in the pixel structure specifically comprises:

when the color arrangement orders of sub-pixels in two adjacentsub-pixel groups in the row direction are the same, the correspondingsampling area of a sub-pixel of three primary colors in the pixelstructure being: a rectangular sampling area that takes the sub-pixel asthe center and overlaps with 9 square pixel units arranged in three rowsand three columns respectively; and corresponding sampling areas ofsub-pixels of the same primary color being in continuous distribution;

when the color arrangement orders of sub-pixels in two adjacentsub-pixel groups in the row direction are the same, the correspondingsampling area of a sub-pixel of three mixed colors in the pixelstructure being: a square pixel unit constituted by the sub-pixel and asquare pixel unit adjacent in the row direction; and correspondingsampling areas of sub-pixels of the same mixed color being in continuousdistribution in the row direction.

In a possible implementation, in the above method, the step ofdetermining a corresponding sampling area of each sub-pixel in the pixelstructure based on the color arrangement order of the sub-pixels in eachsub-pixel group in the pixel structure specifically comprises:

when a color arrangement order of an odd row of sub-pixels in asub-pixel group in the row direction is the same as a color arrangementorder of an even row of sub-pixels in an adjacent sub-pixel group, thecorresponding sampling area of each sub-pixel in the pixel structurebeing: a rectangular sampling area that takes the sub-pixel as thecenter and overlaps with 15 square pixel units arranged in three rowsand five columns respectively; and corresponding sample areas of oddrows of sub-pixels of the same color being in continuous distribution,corresponding sampling areas of even rows of sub-pixels of the samecolor being in continuous distribution.

In a possible implementation, in the above method, the step ofdetermining a corresponding sampling area of each sub-pixel in the pixelstructure based on the color arrangement order of the sub-pixels in eachsub-pixel group in the pixel structure specifically comprises:

when a color arrangement order of an odd row of sub-pixels in asub-pixel group in the row direction is the same as a color arrangementorder of an even row of sub-pixels in an adjacent sub-pixel group, thecorresponding sampling area of a sub-pixel of three primary colors inthe pixel structure being: a rectangular sampling area that takes thesub-pixel as the center and overlaps with 15 square pixel units arrangedin three rows and five columns respectively; and corresponding sampleareas of odd rows of sub-pixels of the same color being in continuousdistribution, corresponding sampling areas of even rows of sub-pixels ofthe same color being in continuous distribution;

when a color arrangement order of an odd row of sub-pixels in asub-pixel group in the row direction is the same as a color arrangementorder of an even row of sub-pixels in an adjacent sub-pixel group, thecorresponding sampling area of a sub-pixel of three mixed colors in thepixel structure being: a square pixel unit constituted by the sub-pixeland a square pixel unit adjacent in the row direction; and correspondingsampling areas of sub-pixels of the same mixed color being in continuousdistribution in the row direction.

The pixel structure provided by an embodiment of the present applicationcomprises a plurality of sub-pixel groups arranged in an array, whereineach sub-pixel group is constituted by 6 sub-pixels of different colorsarranged in two rows and three columns respectively; in each row ofsub-pixels, a square pixel unit being constituted by at most twoadjacent sub-pixels. In the pixel structure provided by the embodimentof the present application, each sub-pixel group is constituted by 6sub-pixels of different colors, so as to increase the color gamut of thepixel structure, and in each row of sub-pixels, a square pixel unitbeing constituted by at most two adjacent sub-pixels, so as to reducethe number of the data transmission lines required by the pixelstructure.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of a typical RGB stripe pixel structure inthe prior art;

FIG. 2 is a schematic view of a delta pixel structure in the prior art;

FIG. 3 is a schematic view of a pixel structure provided according to anembodiment of the present application;

FIG. 4 is a schematic view of a pixel structure provided according to anembodiment of the present application;

FIG. 5 is a flow chart of a method of driving a pixel structure providedaccording to an embodiment of the present application;

FIG. 6 is a schematic view of a sampling area of a red sub-pixel in thepixel structure as shown in FIG. 3 provided according to an embodimentof the present application;

FIG. 7 is a schematic view of a pixel unit comprised in a sampling areaof a red sub-pixel in the pixel structure as shown in FIG. 3 providedaccording to an embodiment of the present application;

FIG. 8 is a schematic view of a sampling area of a cyan sub-pixel in thepixel structure as shown in FIG. 3 provided according to an embodimentof the present application;

FIG. 9 is a schematic view of a sampling area of a red sub-pixel in thepixel structure as shown in FIG. 4 provided according to an embodimentof the present application;

FIG. 10 is a sampling area of a cyan sub-pixel in the pixel structure asshown in FIG. 4 provided according to an embodiment of the presentapplication

DETAILED DESCRIPTION

With respect to the problem of low color gamut of the pixel structure inthe prior art, embodiments of the present application provide a pixelstructure, a display panel and a driving method of the pixel structure.Next, the specific implementation of the pixel structure provided by anembodiment of the present application will be explained in detail withreference to the drawings.

As shown in FIG. 3 or FIG. 4, the pixel structure according to anembodiment of the present application comprises: a plurality ofsub-pixel groups 001 arranged in an array. Each sub-pixel group 001 isconstituted by 6 sub-pixels of different colors arranged in two rows andthree columns respectively. In each row of sub-pixels, a square pixelunit is constituted by at most two adjacent sub-pixels.

In the pixel structure provided by an embodiment of the presentapplication, each sub-pixel group 001 is constituted by 6 sub-pixels ofdifferent colors, so as to increase the color gamut of the pixelstructure. Moreover, in each row of sub-pixels, a square pixel unit isconstituted by at most two adjacent sub-pixels so as to reduce thenumber of data transmission lines required by the pixel structure.

In FIG. 3 and FIG. 4, the 6 sub-pixels within the dotted line of theparallelogram constitute a sub-pixel group 001, and each sub-pixel group001 is constituted by 6 sub-pixels of different colors arranged in tworows and three columns. The shape of the sub-pixel in each sub-pixelgroup 001 is preferably rectangle, and the size of each sub-pixel is thesame. In specific implementation, the sub-pixel can be set in othershapes, and the size of the sub-pixel can also be adjusted based onactual conditions, hence, the shape and the size of the sub-pixel willnot be defined here. FIG. 3 and FIG. 4 take the example of thearrangement manner that the odd rows and the even rows are staggered bya certain width. In actual applications, the odd rows and the even rowscan also be aligned. FIG. 3 and FIG. 4 only schematically draw a pixelstructure of 6 rows and 6 columns. In actual application, more sub-pixelgroups 001 can be arranged according to the pixel arrangement rule ofthe embodiment of the present application based on actual needs. In eachrow of sub-pixels, a square pixel unit is constituted by at most twoadjacent sub-pixels. In FIG. 1, each square pixel unit comprises threesub-pixels and requires three data transmission lines, while in FIG. 3or FIG. 4, if two adjacent sub-pixels constitute a square pixel unit,each square pixel unit only requires two data transmission lines,thereby reducing the number of the data transmission lines.

In the pixel structure provided by an embodiment of the presentapplication, the color arrangement orders of the sub-pixels in twoadjacent sub-pixels in the column direction are the same.

The color arrangement orders of sub-pixels in two adjacent sub-pixelgroups 001 in the row direction are the same. As shown in FIG. 3,alternatively, a color arrangement order of an odd row of sub-pixels ina sub-pixel group 001 in the row direction is the same as a colorarrangement order of an even row of sub-pixels in an adjacent sub-pixelgroup 001, as shown in FIG. 4.

In the pixel structure as shown in FIG. 3, the sub-pixels of threecolors are arranged cyclically in the odd row, the sub-pixels of otherthree colors are arranged cyclically in the even row. FIG. 3 takes theexample that red (R), green (G) and cyan (C) are arranged cyclically inthe odd rows, and blue (B), magenta (M) and yellow (Y) are arrangedcyclically in the even rows. In specific implementation, other colororders can also be used for the arrangement. For example, the threecolors of RGB are arranged cyclically in the odd rows, and the threecolors of CMY are arranged cyclically in the even rows. Moreover, thethree colors of RGC can be arranged in various orders such as RGC, RCG,CGR, GCR etc., or other colors can also be used. The colors of thesub-pixels and the color arrangement orders of the sub-pixels in the oddrows and even rows will not be defined here.

In the pixel structure as shown in FIG. 4, sub-pixels of six colors arearranged cyclically in each row. FIG. 4 takes the example of thearrangement order of six colors of RGBCMY. In specific implementation,other colors and other color orders can also be used for thearrangement, for example, various color arrangement orders of RBCYGM,GRBCMY, BGRCMY. The colors of the sub-pixels and the color arrangementorders will not be defined here. The arrangement of the sub-pixelstructure as shown in FIG. 4 is more uniform in the row direction.

In the pixel structure provided by an embodiment of the presentapplication, two adjacent rows of sub-pixels are staggered by Xsub-pixels in the column direction, 0≤X≤1. When X is equal to 0, thepixel structure is in a stripe arrangement, when X is equal to 1, twoadjacent rows of sub-pixels are staggered by one sub-pixel in the columndirection.

In an embodiment, in each row of sub-pixels, a square pixel unit isconstituted by every 2 sub-pixels, a ratio of a length of the sub-pixelalong the row direction and a length of the sub-pixel along the columndirection is 1:2.

In an embodiment, a square pixel unit is constituted by every 1.5sub-pixels, a ratio of a length of the sub-pixel along the row directionand a length of the sub-pixel along the column direction is 1:1.5.

In an embodiment, a square pixel unit is constituted by every 1sub-pixel, a ratio of a length of the sub-pixel along the row directionand a length of the sub-pixel along the column direction is 1:1.

In each row of sub-pixels, a square pixel unit is constituted by every 2sub-pixels, thus each square pixel unit only requires two datatransmission lines. Compared to the typical stripe arrangement whichrequires three data transmission lines, the number of the datatransmission lines is reduced. In each row of sub-pixels, a square pixelunit is constituted by every 1.5 or 1 sub-pixel, compared to the typicalstripe arrangement, the number of the data transmission lines is furtherreduced. In the embodiments of the present application, the illustrationis made only by taking the example that every 2, 1.5 or 1 sub-pixelconstitutes a square pixel unit, however, in actual applications, asquare pixel unit can also be constituted by other number of sub-pixelsless than 2, which can also reduce the number of the data transmissionlines.

The pixel structure provided by an embodiment of the present applicationcan comprise sub-pixels of red, blue, green, cyan, magenta and yellow.However, in actual applications, sub-pixels of other colors can also beused, which will not be defined here.

The pixel structure provided by an embodiment of the present inventioncan be applied in a liquid crystal display (LCD) or an organic lightemitting diode (OLED), and can also be applied in other display panelsor display devices, which will not be defined here.

Based on the same inventive concept, an embodiment of the presentapplication provides a display panel, comprising the above pixelstructure.

Based on the same inventive concept, an embodiment of the presentapplication provides a method for driving the above pixel structure, theflow chart is as shown in FIG. 5, comprising:

S101, receiving original image information of a frame to be displayed;

S102, determining a corresponding sampling area of each sub-pixel in thepixel structure based on the color arrangement order of the sub-pixelsin each sub-pixel group in the pixel structure; the correspondingsampling area of each sub-pixel comprising a square pixel unitconstituted by the sub-pixel and at least partial adjacent square pixelunit;

S103, determining a weight of each square pixel unit comprised in thesampling area in the corresponding sampling area of each sub-pixel basedon a proportion of area occupied by the square pixel unit comprised inthe determined corresponding sampling area of each sub-pixel in thesampling area;

S104, determining a gray scale value that needs to be displayed by eachsub-pixel based on the weight of each square pixel unit comprised in thesampling area in the corresponding sampling area of each sub-pixel and acorresponding gray scale value of each square pixel unit with a samecolor as the sub-pixel in the original image information of the frame tobe displayed;

S105, performing display based on the determined gray scale value thatneeds to be displayed by each sub-pixel.

The method for driving the pixel structure provided by an embodiment ofthe present application performs sub-pixel rendering to the inputtedoriginal image information, uses a lower actual physical pixel torealize a higher visual resolution, thereby achieving a better displayeffect, and improving visual resolution of the human eyes and the userexperience.

Next, the driving method provided by an embodiment of the presentapplication will be described in detail with reference to the pixelstructure as shown in FIG. 3. FIG. 3 makes explanation by taking theexample that the sub-pixel is a rectangle, and the ratio of the lengthof the sub-pixel along the row direction and the length of the sub-pixelalong the column direction is 1:1.5, i.e., 1.5 sub-pixels constitute asquare pixel unit.

Take the example of a red sub-pixel, the step S102 provided by anembodiment of the present application can be performed in the followingway:

The corresponding sampling area of the red sub-pixel in the pixelstructure is determined based on the arrangement order of the redsub-pixel in the pixel structure. As shown in FIG. 6, in the multipleblock areas formed by heavy lines, each block is a sampling area, eachsampling area comprises a square pixel unit constituted by one redsub-pixel and at least partial adjacent square pixel unit. In order todemonstrate the sampling area of the red sub-pixel more clearly,sub-pixels of other colors are not shown in FIG. 6. The pixel structureas shown in FIG. 6 and the pixel structure as shown in FIG. 3 have thesame color arrangement order, there are also sub-pixels of other colorsaround the red sub-pixels actually.

Specifically, the sampling area of the red sub-pixel can be determinedin the following way:

The sampling area of the red sub-pixel is: a rectangular sampling areathat takes a red sub-pixel as the center and overlaps with 9 squarepixel units arranged in three rows and three columns; and thecorresponding sampling areas of sub-pixels of the same color are incontinuous distribution, as shown in FIG. 6. FIG. 7 explains the 9square pixel units corresponding to the sampling area of the redsub-pixel by taking any one of the red sub-pixels in FIG. 6 as theexample. The 9 blocks A1-A9 that are filled and have dotted frames inthe figure represent the positions of the 9 pixel units.

Also by taking the red sub-pixel as an example, the step S103 providedby an embodiment of the present application can be performed in thefollowing way:

Referring to FIG. 7, in order to demonstrate the sampling area of thered sub-pixel more clearly, sub-pixels of other colors are not shown inFIG. 7. The weight of each square pixel unit is determined based on aproportion of area occupied by the pixel units A1-A9 in the samplingarea. The obtained weight of the pixel unit comprised in the samplingarea of the red sub-pixel is:

${Filter\_ R} = \begin{bmatrix}3 & 3 & 0 \\4 & 6 & 2 \\3 & 3 & 0\end{bmatrix}$

Also take the example of a red sub-pixel, the step S104 provided by anembodiment of the present application can be performed in the followingway:

A gray scale value R that needs to be displayed by the red sub-pixel isdetermined based on the weight of the 9 square pixel units in thecorresponding sampling area of the red sub-pixel and a gray scale valuer of the corresponding red sub-pixel of each square pixel unit in theoriginal image information of a frame to be displayed.

The gray scale value R (m, n) of the nth red sub-pixel in the mth row inthe pixel structure provided by an embodiment of the present applicationis calculated in the following way:

${R( {m,n} )} = {{Filter\_ R}*\begin{bmatrix}{r( {{m - 1},{{2n} - 2}} )} & {r( {{m - 1},{{2n} - 1}} )} & {r( {{m - 1},{2n}} )} \\{r( {m,{{2n} - 2}} )} & {r( {m,{{2n} - 1}} )} & {r( {m,{2n}} )} \\{r( {{m + 1},{{2n} - 2}} )} & {r( {{m + 1},{{2n} - 1}} )} & {r( {{m + 1},{2n}} )}\end{bmatrix}}$

Wherein r(m,n) represents the gray scale value of the red sub-pixel inthe nth pixel of the mth row in the original image information; filter_Rrepresents the weight of the 9 square pixel units in the correspondingsampling area of the red sub-pixel.

As for sub-pixels of other colors, the similar way as the red sub-pixelcan be used to set the sampling area, to determine the weight of eachpixel unit comprised in the sampling area and to determine the grayscale value that the color needs to display, and finally to performdisplay based on the determined gray scale value that each sub-pixelneeds to display.

When driving the pixel structure as shown in FIG. 3, the three primarycolors (i.e., red, green and blue) and three mixed colors (i.e., cyan,magenta and yellow) can be driven by different driving ways.

The corresponding sampling area of each sub-pixel of three primarycolors in the pixel structure is: a rectangular sampling area that takesthe sub-pixel as the center and overlaps with 9 square pixel unitsarranged in three rows and three columns respectively; and thecorresponding sampling areas of sub-pixels of the same primary color arein continuous distribution.

The setting of the sampling area of sub-pixels of three primary colorsis the same as the setting of the sampling area of the red sub-pixel inthe above embodiment. The weight of the pixel unit comprised in thesampling areas of the green sub-pixel and the blue sub-pixel differsfrom the weight of the pixel unit comprised in the red sub-pixel,wherein the weight of the corresponding 9 pixel units in the samplingarea of the green sub-pixel is:

${{Filter\_ G} = \begin{bmatrix}1 & 3 & 2 \\0 & 6 & 6 \\1 & 3 & 2\end{bmatrix}};$

The weight of the corresponding 9 pixel units of the sampling area ofthe blue sub-pixel is:

${Filter\_ B} = {\begin{bmatrix}1 & 3 & 2 \\4 & 6 & 2 \\1 & 3 & 2\end{bmatrix} \circ}$

The corresponding sampling area of each sub-pixel of three mixed colorsin the pixel structure is: a square pixel unit constituted by thesub-pixel and a square pixel unit adjacent in the row direction; and thecorresponding sampling areas of sub-pixels of the same mixed color arein continuous distribution in the row direction, as shown in FIG. 8.

Next, the driving method of sub-pixels of each mixed color will beexplained by taking the cyan sub-pixel as the example. In order todemonstrate the sampling area of the cyan sub-pixel more clearly,sub-pixels of other colors are not shown in FIG. 8.

The sampling area of the cyan sub-pixel comprises a square pixel unitconstituted by a cyan sub-pixel and a square pixel unit adjacent in therow direction. The two blocks B1 and B2 in FIG. 8 that are filled andhave dotted frames represent two pixel units comprised in the samplingarea. FIG. 8 explains the pixel units comprised in this sampling area bytaking the 4 cyan sub-pixels in the first row as the example. In orderto achieve a more demonstration effect, the heavy line frames of thissampling area are omitted in the figure.

In FIG. 8, one sampling area comprises a square pixel unit constitutedby a cyan sub-pixel and a pixel unit at the left of this pixel unit. Inactual applications, one sampling area can also comprise a square pixelunit constituted by a cyan sub-pixel and a pixel unit at the right ofthis pixel unit, or, a pixel unit comprises a cyan sub-pixel and asub-pixel of other colors at the left and right side thereofrespectively.

From FIG. 8 it can be seen that the two square pixel units B1 and B2comprised in the sampling area of the cyan sub-pixel have the same area,also because the cyan is composed of blue and green of the same content,the weight of the pixel unit comprised in the cyan sampling area is:

${{Filter\_ C} = \begin{bmatrix}1 & 1 \\1 & 1\end{bmatrix}},$

The gray scale value C (m, n) of the nth cyan sub-pixel in the mth rowin the pixel structure provided by an embodiment of the presentapplication is calculated in the following way:

${C( {m,n} )} = {{Filter\_ C}*\begin{bmatrix}{g( {m,{{2n} - 1}} )} & {g( {m,{2n}} )} \\{b( {m,{{2n} - 1}} )} & {b( {m,{2n}} )}\end{bmatrix}}$

Wherein g(m, n) represents the gray scale value of the green sub-pixelin the nth pixel of the mth row in the original image information; b (m,n) represents the gray scale value of the blue sub-pixel in the nthpixel of the mth row in the original image information; Filter_Crepresents the weight of the 9 square pixel units in the correspondingsampling area of the cyan sub-pixel.

The setting of the sampling areas of the magenta sub-pixel and theyellow sub-pixel is the same as that of the sampling area of the cyansub-pixel, and the weight of the pixel unit comprised in the samplingareas of the magenta sub-pixel and the yellow sub-pixel is the same asthe weight of the pixel unit comprised in the cyan sub-pixel, i.e., theweight of the pixel unit comprised in the sampling area of the magentasub-pixel is:

${{Filter\_ M} = \begin{bmatrix}1 & 1 \\1 & 1\end{bmatrix}};$

The weight of the pixel unit comprised in the sampling area of theyellow sub-pixel is:

${Filter\_ Y} = {\begin{bmatrix}1 & 1 \\1 & 1\end{bmatrix} \circ}$

The setting of the sampling area of the three mixed colors is differentfrom the sampling area of the three primary colors. The sampling area ofthe three mixed colors comprises less pixel units than the sampling areaof the three primary colors, thus repeated sampling is avoided and sucha sampling can be carried out more easily.

Next, the driving method provided by an embodiment of the presentinvention will be described in detail with reference to the pixelstructure provided by FIG. 4 of the present invention. FIG. 4 makesexplanation by taking the example that the sub-pixel is a rectangle andthe ratio of the length of each sub-pixel along the row direction andthe length of the sub-pixel along the column direction is 1:1.5, i.e.,1.5 sub-pixels constituting a square pixel unit.

Takes the red sub-pixel as an example, as shown in FIG. 9, in order todemonstrate the sampling area of the red sub-pixel more clearly,sub-pixels of other colors are not shown in FIG. 9. Because the redsub-pixels exist in both odd rows and even rows, sampling areas have tobe set to the red sub-pixels in odd rows and even rows respectively, inthis way, the driving effect will be better. Specifically, the samplingarea of the red sub-pixel is: a rectangular sampling area that takes ared sub-pixel as the center and overlaps with 15 square pixel unitsarranged in three rows and five columns respectively; and thecorresponding sampling areas of odd rows of sub-pixels of the same colorare in continuous distribution, the corresponding areas of even rows ofsub-pixels of the same color are in continuous distribution. In FIG. 9,the block areas formed by heavy lines are corresponding sampling areasof the odd rows of sub-pixels, the block areas formed by heavy dottedlines are corresponding sampling areas of the even rows of sub-pixels.The implementation of determining the weight of the pixel unit comprisedin the sampling area of the red sub-pixel in the pixel structure issimilar as the implementation of determining the weight of the pixelunit comprised in the sampling area of the red sub-pixel in the pixelstructure in the above FIG. 3, which will not be repeated here.

As for sub-pixels of other colors, the similar way as the red sub-pixelcan be used to set the sampling area, to determine the weight of eachpixel unit comprised in the sampling area and to determine the grayscale value that the color needs to display, and finally to performdisplay based on the determined gray scale value that each sub-pixelneeds to display.

When driving the pixel structure as shown in FIG. 4, the three primarycolors (i.e., red, green and blue) and three mixed colors (i.e., cyan,magenta and yellow) can be driven by different driving ways.

The corresponding sampling area of each sub-pixel of three primarycolors in the pixel structure is: a rectangular sampling area that takesthe sub-pixel as the center and overlaps with 15 square pixel unitsarranged in three rows and five columns respectively; and thecorresponding sampling areas of odd rows of sub-pixels of the same colorare in continuous distribution, the corresponding sampling areas of evenrows of sub-pixels of the same color are in continuous distribution. Thesetting of the sampling area of each sub-pixel of the three primarycolors is the same as the setting of the sampling area of the redsub-pixel in the above implementation.

The corresponding sampling area of each sub-pixel of three mixed colorsin the pixel structure is: a square pixel unit constituted by thesub-pixel and a square pixel unit adjacent in the row direction; and thecorresponding sampling areas of sub-pixels of the same mixed color arein continuous distribution in the row direction. As shown in FIG. 10,FIG. 10 takes the sampling area of the cyan sub-pixel as an example, andin order to demonstrate the sampling area of the cyan sub-pixel moreclearly, sub-pixels of other colors are not shown in FIG. 10. Thesampling area of the cyan sub-pixel comprises a square pixel unitconstituted by a cyan sub-pixel and a square pixel unit adjacent in therow direction. In FIG. 10, a sampling area comprises a square pixel unitconstituted by a cyan sub-pixel and a pixel unit at the right of thepixel unit. In actual applications, a sampling area can also comprises asquare pixel unit constituted by a cyan sub-pixel and a pixel unit atthe left of the pixel unit, or a pixel unit comprises a cyan sub-pixeland a sub-pixel of other colors at the left and right side thereofrespectively. The sampling areas of the magenta sub-pixel and the yellowsub-pixel are similar as the sampling area of the cyan sub-pixel, whichwill not be repeated here.

Specifically, the same pixel arrangement can comprise multiple ways ofdetermining the sampling area, the weight of the pixel unit comprised byeach sampling area will also be different, thus different displayeffects may occur. In actual applications, multiple ways of determiningthe sampling area can be compared, so as to make improvement to thedriving method of the pixel structure, thereby achieving a betterdisplay effect.

Embodiments of the present application provide a pixel structure, adisplay panel and a driving method of the pixel structure. Eachsub-pixel is constituted by 6 sub-pixels of different colors, so as toincrease the color gamut of the pixel structure, and in each row ofsub-pixels, a square pixel unit being constituted by at most twoadjacent sub-pixels, so as to reduce the number of the data transmissionlines required by the pixel structure. The method of driving a pixelstructure provided by an embodiment of the present application performssub-pixel rendering to the inputted original image information, uses alower actual physical pixel to realize a higher visual resolution,thereby achieving a better display effect, and improving visualresolution of the human eyes and the user experience.

Apparently, the skilled person in the art can make various modificationsand variations to the present application without departing from thespirit and the scope of the present application. In this way, providedthat these modification and variations of the present application belongto the scopes of the Claims of the present application as attached andthe equivalent technologies thereof, the present application alsointends to encompass these modifications and variations.

What is claimed is:
 1. A pixel structure, comprising: a plurality ofsub-pixel groups arranged in an array, wherein each of the sub-pixelgroups is constituted by 6 sub-pixels of different colors arranged intwo rows and three columns respectively; in each row of the sub-pixels,a square pixel unit being constituted by at most two adjacentsub-pixels, wherein each square pixel unit has a corresponding samplingarea, wherein when a color arrangement order of an odd row of sub-pixelsin a sub-pixel group in the row direction is the same as a colorarrangement order of an even row of sub-pixels in an adjacent sub-pixelgroup, the corresponding sampling area of each sub-pixel in the pixelstructure is a rectangular sampling area that takes the sub-pixel as thecenter and overlaps with 15 square pixel units arranged in three rowsand five columns respectively; and wherein corresponding sampling areasof odd rows of sub-pixels of the same color are in continuousdistribution, and corresponding sampling areas of even rows ofsub-pixels of the same color are in continuous distribution.
 2. Thepixel structure as claimed in claim 1, wherein color arrangement ordersof sub-pixels in two adjacent sub-pixel groups in a column direction arethe same; color arrangement orders of sub-pixels in two adjacentsub-pixel groups in a row direction are the same.
 3. The pixel structureas claimed in claim 1, wherein color arrangement orders of sub-pixels intwo adjacent sub-pixel groups in a column direction are the same; acolor arrangement order of an odd row of sub-pixels in a sub-pixel groupin the row direction is the same as a color arrangement order of an evenrow of sub-pixels in an adjacent sub-pixel group.
 4. The pixel structureas claimed in claim 1, wherein two adjacent rows of sub-pixels arestaggered by X sub-pixels in the column direction, 0≤X≤1.
 5. The pixelstructure as claimed in claim 1, wherein in each row of sub-pixels, asquare pixel unit is constituted by every 2 sub-pixels, a ratio of alength of the sub-pixel along the row direction and a length of thesub-pixel along the column direction is 1:2.
 6. The pixel structure asclaimed in claim 1, wherein in each row of sub-pixels, a square pixelunit is constituted by every 1.5 sub-pixels, a ratio of a length of thesub-pixel along the row direction and a length of the sub-pixel alongthe column direction is 1.1.5.
 7. The pixel structure as claimed inclaim 1, wherein in each row of sub-pixels, a square pixel unit isconstituted by every 1 sub-pixel, a ratio of a length of the sub-pixelalong the row direction and a length of the sub-pixel along the columndirection is 1:1.
 8. The pixel structure as claimed in claim 1, whereinthe pixel structure comprises sub-pixels of red, blue, green, cyan,magenta and yellow.
 9. A display panel, comprising a pixel structure asclaimed in claim
 1. 10. The display panel as claimed in claim 9, whereincolor arrangement orders of sub-pixels in two adjacent sub-pixel groupsin a column direction are the same; color arrangement orders ofsub-pixels in two adjacent sub-pixel groups in a row direction are thesame.
 11. The display panel as claimed in claim 9, wherein colorarrangement orders of sub-pixels in two adjacent sub-pixel groups in acolumn direction are the same; a color arrangement order of an odd rowof sub-pixels in a sub-pixel group in the row direction is the same as acolor arrangement order of an even row of sub-pixels in an adjacentsub-pixel group.
 12. The display panel as claimed in claim 9, whereintwo adjacent rows of sub-pixels are staggered by X sub-pixels in thecolumn direction, 0≤X≤1.
 13. The display panel as claimed in claim 9,wherein in each row of sub-pixels, a square pixel unit is constituted byevery 2 sub-pixels, a ratio of a length of the sub-pixel along the rowdirection and a length of the sub-pixel along the column direction is1:2.
 14. The display panel as claimed in claim 9, wherein in each row ofsub-pixels, a square pixel unit is constituted by every 1.5 sub-pixels,a ratio of a length of the sub-pixel along the row direction and alength of the sub-pixel along the column direction is 1:1.5.
 15. Thedisplay panel as claimed in claim 9, wherein in each row of sub-pixels,a square pixel unit is constituted by every 1 sub-pixel, a ratio of alength of the sub-pixel along the row direction and a length of thesub-pixel along the column direction is 1:1.